Trane TCONT800 - Manual (Page 27)

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Battery Tips
1. Replace the batteries as soon as LO Batt flashes in the display. The LO Battery indicator
flashes in the display one month before the batteries run down completely.
2. Always use fresh AAA alkaline batteries. Non-alkaline batteries do not last as long and can
leak, causing comfort control damage.
Battery Power (Optional)
The comfort control is designed to be programmed while relaxing in your favorite chair. Install the
three AAA batteries on the back of the control and you are ready to go. When you have completed
programming the control, remove the batteries or simply leave them in place.